You’ve probably learned early on that there are three primary colours. But why three? And why these three? And what does it have to do with “adding” colours? Is the “addition” of colours even an addition? Surprisingly, the answer lies in the beautiful mathematics of linear algebra and (high) dimension spaces!
Colours and Dimension:
Colors: It’s not just about Wavelengths:
What’s a straight line? Curved-space geometry | Science4All 10